Finding the Fourth Proportional to 125,816.17, 173,569.10 and 74,799.95
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Solution
The fourth proportional to 125,816.17, 173,569.10 and 74,799.95 is: 103,189.92
Step by Step Solution
- Step 1: Write the proportion equation
125,816.17 : 173,569.10 = 74,799.95 : x - Step 2: Convert to fraction form
125,816.17/173,569.10 = 74,799.95/x - Step 3: Cross multiply
125,816.17x = 173,569.10 × 74,799.95 - Step 4: Simplify right side
125,816.17x = 12,982,960,008.44 - Step 5: Solve for x
x = 12,982,960,008.44/125,816.17 - Step 6: Final answer
x = 103,189.92
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.